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["序号","串口号","第3个字节","第4个字节","频点(MHz)","字节是从左往右数"]
["1","COM20","02","01",2201.5]
["2",null,null,"06",2206.5]
["3",null,null,10,2216.5]
["4",null,null,"1A",2226.5]
["5",null,null,24,2236.5]
["6",null,null,"2E",2246.5]
["7",null,null,32,2250.5]
["8",null,null,38,2256.5]
["9",null,null,42,2266.5]
["10",null,null,"4C",2276.5]
["11",null,null,56,2286.5]
["12",null,null,60,2296.5]
["13",null,null,63,2299.5]